1. Department of Internal Medicine and Medical Therapeutics, University of Pavia Medical School, 27100 Pavia, Italy
2. Unit of Respiratory Diseases, Cardiothoracic and Vascular Department, IRCCS Policlinico San Matteo, 27100 Pavia, Italy
3. Department of Medical Sciences, University of Turin, 10124 Turin, Italy
4. Pathology Unit, FPO-IRCCS Candiolo Cancer Institute, Strada Provinciale 142, 10060 Candiolo, Italy
5. Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2/3, 28100 Novara, Italy
6. Department of Surgical, Pediatric and Diagnostic Sciences, University of Pavia, 27100 Pavia, Italy